Rolls



(Nn Model.)

C. J. GURTIN. ROLLS.

No. 408,219. Patented Aug. 6, 1889.

N. PETERS. Pmmumngmpher. Wuhlngmn. 0.6.

CORNELIUS J. OURTIN, OF

ROL

PATENT OEEICE.

I'IIGII FALLS, NEV YORK.

SPECIFICATION forming part of Letters Patent No. 408,219, dated August6, 1889.

i Application filed January 30, 1889. Serial No. 298,157. (No model.)

To all whom t may concern.-

Be it known that I, CORNELIUS J. CURTIN, a resident of High Falls, inthe county of Ulster and State of New York, have invented certain newand useful Improvements in Rolls; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it pertains to make anduse the same.

My invention relates to an improvement in rolls for rolling ingots ofmetal into concavo-convex sheets or plates adapted to be used for makingmetallic barrels, such as described in my application for Letters Patentof the United States,1iled January 24, 1889; and it consists in thepeculiar construction and combination of devices hereinafter describedand claimed.

In the accompanying drawings, Figure l is a side elevation, partly insection, of two pairs of geared rolls embodying my improvements. Fig. 2is an end elevation of the same.

A represents a frame or housing, of the usual or any suitable form. Inone end of the same are j ournaled a pair of shafts B C, which areprovided, respectively, with gearwheels I) E, which engage cach other,the said gear-wheels being of the same diameter.

To the shaft B is secured a primary roll F, which has its peripheralsurface concave in form, as shown, and to the shaft O is secured anotherprimary roll G, the peripheral surface of which is swelled or convex inform, with its lower side concentric with and at a suitable distancefrom the upper side of the roll F.

In the opposite end of the frame or housing are journaled a pair ofshafts II I, the outer ends of which are provided with gearwheels K L,respectively, that. engage each other, and are of the same size as thegearwheels D E.

To the shaft II is secured a finishing-roll M, having its peripheralsurface concave in form, and to the shaft I is secured a finishing rollN, having its peripheral surface swelled or convex in form.

To the upper side of the frame or housing, at the ends and centerthereof, are secured brackets O, of the form shown in Fig. 2. On one ofsaid brackets is journaled an idle gear-wheel P, that engages thegear-wheel L; also journaled in said bracket is a shaft R, to one end ofwhich is secured a gear-wheel S, that engages the wheel P, and to theother end of said shaft is secured a gearwheel T, (somewhat larger thanthe gearwheel 8,) that engages the gear -wheel E. The said shaft is alsoprovided with a driving-pulley (not shown) to receive power from anengine or motor, and it will be understood that the rotation of the saidshaft will be communicated to the pairs of primary and finishing rollsby the gear-wheels, so that each pair of rolls will revolve in oppositedirections, but the opposing faces will travel in the same direction.

The heated ingot of metal, on being taken from the furnace, will beintroduced between the pair of primary or roughing rolls, and convertedthereby into a sheet or plate of approximately the correct thickness andof the correct concavo-convex form. IVhen the said ingot has passedthrough the primary rolls, the partly-finished sheet or plate of metalwill then be passed between the finishing-rolls, which will reduce it tothe required size, shape, and thickness.

Having thus described my invention, I claiml. The rolls having theconcave peripheral surfaces, in combination with the proximate rollshaving' the convex peripheral surfaces, for the purpose set forth,substantially as described.

2. The pairs of rolls geared together and adapted to rotate in unison,and the drivingshaft R, geared to said rolls, all in combination,substantially as described.

3. The combination of the frame or housing, the two pairs of rollsmounted in opposite ends thereof, each pair of rolls having meshedgear-Wheels of the same diameter, and the driving-shaft journaled on thehousing or frame and having the gears or pinions engaging thero11-gears, substantially as described.

4. The Combination of the two pairs of rolls having the gear-wheelsengaging each other, the idle gear-Wheels engaging the rollgeals, andthe driving-shaft having the gears engaging said idle-gears,substantially as dero scribed. In testimony whereof I have signed thisspecification in the presence of two subscribing Witnesses.

4 CORNELIUS J. CURTIN. Witnesses:

RUFUs KEATOR, RUFUS SNYDER.

